<!doctype html>
<html lang="en">
  <head>
    {% block title %}<title>Local Library</title>{% endblock %}
  </head>

  <body>
    <div class="container">
      <div class="row">
        <div class="col-sm-2">
          {% block sidebar %}
            <ul class="sidebar-nav">
              <li><a href="{% url 'index' %}">Home</a></li>
              <li><a href="">All books</a></li>
              <li><a href="">All authors</a></li>
            </ul>
          {% endblock %}
        </div>
        <div class="col-sm-10">
          {% block content %}{% endblock %}
        </div>
      </div>
    </div>
  </body>
</html>
